: Finding the number of 1s or 0s in a byte.
: Implementing division by 2 (shifting right). rotate.rar
The instruction is an implicit addressing mode command used to rotate the bits of the Accumulator one position to the right through the Carry flag . : Finding the number of 1s or 0s in a byte
: The 0th bit (LSB) moves into the Carry flag, and the previous Carry flag moves into the 7th bit (MSB). Size : 1 byte. Machine Cycles : 1 (4 T-states). Bit Movement Diagram Bit 0 →right arrow Carry Flag Carry Flag →right arrow Bit 7 Bit 7 →right arrow Bit 6 ... and so on. 📄 Key Applications in "Helpful Papers" : The 0th bit (LSB) moves into the
: Checking if a number is even or odd by testing the Carry flag after one rotation.
Technical papers and assembly guides often use RAR for the following tasks:
: Reversing bit patterns to see if they match the original. 🛠 Common 8085 Instructions Often Bundled with RAR
